JerseyBigfoot wrote:
Does anyone know?
Has anyone tried to fit a JC41 in a base bar? My plan is to run both base bar brake/shift units to the JC41 and one extension shifter. I’d like to use a y-cable and JC200 off the other extension to go to the frame.
From there, a JC200 female/female connector down to the BB and then the main junction under the seat.
I don’t envisage it being easy or maybe possible, but the idea of whittling down the four shifter cables using y-cables and everything stuffed in the base bar like a rats’ nest is so unpalatable...
It would be a tight fit getting the JC41 through the bar end area. You'd probably have to check it with the parts in hand.
So a few potential options to mention:
-You don't indicate which Shimano component series you're planning to use. The latest single button shifter offerings have female e-tube ports while the previous gen two-button shifters have e-tube pigtails with male ends. So you're fine including y-cables for the single button models while you'd need the JC200 to couple every two button shifter connection.
-I would suggest taking a look at the Shimano XTR Di2 SM-BTC1 external mount battery holder for internal batteries. Included is a 6-Port Junction-B that is cylinder shaped. I would guess it would fit in the Vuka Bull. You'd need enough wire slack to get everything plugged in externally out one end of the bar before pulling it back into the bar. I've used this Junction-B to wire up a Vuka Stealth with all four shifters connected inside the base bar.
-You didn't mention what you were using for extensions/hardware. Assuming you aren't planning on using Saltstick dispensers or similar in the back of your extensions I would also suggest considering the Shimano Di2 EW-RS910 Junction A mounted in the back of one extension. You would just run the extension e-tube wire to junction and one out the extension to basebar. This depends somewhat on extension type and i.d. if you need wire to come out back, but I've done this with both carbon (tight) and aluminum (easy) extensions. This setup eliminates routing the junction A to under your seat and finding a way to mount it, along with dealing with in when taking out seatpost for travel, etc.
-If your extension length is adequate and you use the 6-Port Junction B you may also have the opportunity to hide your battery in one extension with the e-tube wire fed to the last unused Junction B port (4x shifter, 1 to downtube, 1 free)